Re: [PATCH v4 02/14] x86/iommu: add common page-table allocator

[Jan Beulich <jbeulich@xxxxxxxx>]

On 04.08.2020 15:41, Paul Durrant wrote:
> From: Paul Durrant <pdurrant@xxxxxxxxxx>
> 
> Instead of having separate page table allocation functions in VT-d and AMD
> IOMMU code, we could use a common allocation function in the general x86 code.
> 
> This patch adds a new allocation function, iommu_alloc_pgtable(), for this
> purpose. The function adds the page table pages to a list. The pages in this
> list are then freed by iommu_free_pgtables(), which is called by
> domain_relinquish_resources() after PCI devices have been de-assigned.
> 
> Signed-off-by: Paul Durrant <pdurrant@xxxxxxxxxx>

Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>